Question

the population of a village increase by 20% in every end of the year. In which year the population will be doubled ​

Answer 1

Answer:

5th year

Step-by-step explanation:

hope you understand

Answer 2

Answer:

4 years

Step-by-step explanation:

suppose assume the population of village is x

after the end of the first year the population is increased by (20/100)*x.

the after after one year population is 1.2x

after second year the population increased by (20/100)*1.2x

i.e population after two years is 1.2x+0.24x=1.44x

after third year it is increased by (20/100)*1.44x

i.e after 3 years population =1.44x+0.288x=1.728x

after 4th year it is incresed by(20/100)*1.728x

i.e after 4 years population =1.728x+.3456x=2.0736x=2x

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